185 lines
5.2 KiB
C
185 lines
5.2 KiB
C
/*品智科技S32K118开发板*/
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/* bootloader实验
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* 实验目的：
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* 将bootloader 和 app 工程烧录进入开发板，在bootloader程序里，使用按键KEY1，跳转进入APP程序
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*
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* BOOTLOADRT程序内存分配：
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* 中断向量表
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* 0x00000000 - 0x000000C0
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* flash配置信息
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* 0x00000400 - 0x00000410
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* bootloader程序 占用31.728k空间
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* 0x00000410 - 0x00008000
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*
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* APP程序内存分配：
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* 中断向量表
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* 0x00008000 - 0x00008400
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* flash配置信息
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* 0x00008400 - 0x00008410
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* bootloader程序 占用256k空间
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* 0x00008410 - 0x00048410
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* 内存配置文件在工程文件夹内的Project Setting/Linker Files/S32K144_64_flash下
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*
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* 操作方法，将两个应用同时烧录进开发板内即可。
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* KEY1 PTC14
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* KEY2 PTC15
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* KEY3 PTC16
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* LED1 PTD16
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* LED2 PTD15
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* LED3 PTE9
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* LED4 PTE8
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* 开发板采用无外部晶振设计,时钟走FIRC 48mhz,配置时钟时需要注意
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*/
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#include "Cpu.h"
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#include "delay.h"
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#include "uart.h"
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#include "oled.h"
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#include "key.h"
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volatile int exit_code = 0;
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/* User includes (#include below this line is not maintained by Processor Expert) */
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#define LED1(x) PINS_DRV_WritePin(PTD,16,!x);
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#define LED2(x) PINS_DRV_WritePin(PTD,15,!x);
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#define LED3(x) PINS_DRV_WritePin(PTE,9,!x);
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#define LED4(x) PINS_DRV_WritePin(PTE,8,!x);
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#define APP_START_ADDRESS 0x00008000 //app开始地址
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void JumpToUserApplication( unsigned int userSP, unsigned int userStartup)
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{
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(void)userSP; //使参数不报警告信息
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(void)userStartup;
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/* 设置栈指针 */
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__asm("msr msp, r0");
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__asm("msr psp, r0");
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/* 重新定向中断向量表 */
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S32_SCB->VTOR = (uint32_t)APP_START_ADDRESS;
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/* 跳转至APP */
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__asm("mov pc, r1");
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}
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void Bootup_Application(uint32_t appEntry, uint32_t appStack)
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{
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static void (*jump_to_application)(void);
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static uint32_t stack_pointer;
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/*把应用程序入口地址赋值给函数指针*/
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jump_to_application = (void (*)(void))appEntry;
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stack_pointer = appStack;
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/* 重新定向中断向量表 */
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S32_SCB->VTOR = (uint32_t)APP_START_ADDRESS;
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/* 设置栈指针 */
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__asm volatile ("MSR msp, %0\n" : : "r" (stack_pointer) : "sp");
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__asm volatile ("MSR psp, %0\n" : : "r" (stack_pointer) : "sp");
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/*跳转*/
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jump_to_application();
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}
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int main(void)
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{
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/* Write your local variable definition here */
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int MCU_Freq;
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uint8_t pinstate;
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uint32_t appEntry, appStack;
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/*** Processor Expert internal initialization. DON'T REMOVE THIS CODE!!! ***/
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#ifdef PEX_RTOS_INIT
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PEX_RTOS_INIT(); /* Initialization of the selected RTOS. Macro is defined by the RTOS component. */
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#endif
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/*** End of Processor Expert internal initialization. ***/
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CLOCK_SYS_Init(g_clockManConfigsArr, CLOCK_MANAGER_CONFIG_CNT,
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g_clockManCallbacksArr, CLOCK_MANAGER_CALLBACK_CNT);
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CLOCK_SYS_UpdateConfiguration(0U, CLOCK_MANAGER_POLICY_AGREEMENT);
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MCU_Freq = delay_init();//初始化delay函数
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PINS_DRV_Init(NUM_OF_CONFIGURED_PINS, g_pin_mux_InitConfigArr);
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LED1(0);
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LED2(0);
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LED3(0);
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LED4(0);
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I2C_MasterInit(&i2c1_instance, &i2c1_MasterConfig0);//初始化I2C外设,用于OLED通讯
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LPUART_DRV_Init(INST_LPUART1, &lpuart1_State, &lpuart1_InitConfig0); //初始化串口
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oled_init(); //OLED配置参数初始化
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OLED_TITLE((uint8_t*)"S32K118",(uint8_t*)"BLOADER");//OLED显示标题
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OLED_ShowString(0,2,(uint8_t*)" BOOTLOADER",16,0); //OLED显示字符串
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u1_printf("当前进入BOOTLOADER程序,MCU运行频率为 %d Mhz \r\n",MCU_Freq);
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while(1)
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{
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pinstate = KEY_Proc (1);
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if(pinstate ==BTN1_PRES )
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{
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u1_printf("KEY1 按下 2秒后进入app \r\n");
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OLED_ShowString(0,4,(uint8_t*)" ENTER APP",16,0); //OLED显示字符串
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OLED_ShowString(0,6,(uint8_t*)" in 2 seconds",16,0); //OLED显示字符串
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delay_ms(1000);
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OLED_ShowString(0,6,(uint8_t*)" in 1 seconds",16,0); //OLED显示字符串
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delay_ms(1000);
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OLED_ShowString(0,6,(uint8_t*)" in 0 seconds",16,0); //OLED显示字符串
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appStack = *(uint32_t *)(APP_START_ADDRESS);
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appEntry = *(uint32_t *)(APP_START_ADDRESS + 4);
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Bootup_Application(appEntry, appStack);
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//JumpToUserApplication(*((uint32_t*)APP_START_ADDRESS), *((uint32_t*)(APP_START_ADDRESS + 4)));
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}
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else
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{
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LCD_clear_L(0,4); //OLED清行
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LCD_clear_L(0,5);
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}
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delay_ms(100);
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PINS_DRV_TogglePins(PTE, 1 << 8);
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PINS_DRV_TogglePins(PTE, 1 << 9);
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}
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/*** Don't write any code pass this line, or it will be deleted during code generation. ***/
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/*** RTOS startup code. Macro PEX_RTOS_START is defined by the RTOS component. DON'T MODIFY THIS CODE!!! ***/
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#ifdef PEX_RTOS_START
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PEX_RTOS_START(); /* Startup of the selected RTOS. Macro is defined by the RTOS component. */
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#endif
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/*** End of RTOS startup code. ***/
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/*** Processor Expert end of main routine. DON'T MODIFY THIS CODE!!! ***/
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for(;;) {
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if(exit_code != 0) {
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break;
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}
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}
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return exit_code;
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/*** Processor Expert end of main routine. DON'T WRITE CODE BELOW!!! ***/
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} /*** End of main routine. DO NOT MODIFY THIS TEXT!!! ***/
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/* END main */
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/*!
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** @}
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*/
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/*
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** ###################################################################
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**
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** This file was created by Processor Expert 10.1 [05.21]
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** for the NXP S32K series of microcontrollers.
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**
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** ###################################################################
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*/
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